[SOLVED] Kernel Panic randomly on 2 units (rPi 1 model B)

[Fabio72]

Today xbian freezed for the first time after many weeks. I was using youtube plugin.
I restarted and within 10 minutes it freezed again, while it was idle.
The only thing I changed was removing of "elevator=noop" from cmdline.txt.
Now I'm tring again with noop elevator and uptime is 4 h